Home / 2,121,347.12-2,925,423.85-1,425,200.76

Finding the Fourth Proportional to 2,121,347.12, 2,925,423.85 and 1,425,200.76

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Solution

The fourth proportional to 2,121,347.12, 2,925,423.85 and 1,425,200.76 is: 1,965,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,347.12 : 2,925,423.85 = 1,425,200.76 : x
  2. Step 2: Convert to fraction form
    2,121,347.12/2,925,423.85 = 1,425,200.76/x
  3. Step 3: Cross multiply
    2,121,347.12x = 2,925,423.85 × 1,425,200.76
  4. Step 4: Simplify right side
    2,121,347.12x = 4,169,316,294,342.13
  5. Step 5: Solve for x
    x = 4,169,316,294,342.13/2,121,347.12
  6. Step 6: Final answer
    x = 1,965,409.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.