Home / 2,156,421.40-3,235,409.70-2,078,661.40

Finding the Fourth Proportional to 2,156,421.40, 3,235,409.70 and 2,078,661.40

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Solution

The fourth proportional to 2,156,421.40, 3,235,409.70 and 2,078,661.40 is: 3,118,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,421.40 : 3,235,409.70 = 2,078,661.40 : x
  2. Step 2: Convert to fraction form
    2,156,421.40/3,235,409.70 = 2,078,661.40/x
  3. Step 3: Cross multiply
    2,156,421.40x = 3,235,409.70 × 2,078,661.40
  4. Step 4: Simplify right side
    2,156,421.40x = 6,725,321,256,575.58
  5. Step 5: Solve for x
    x = 6,725,321,256,575.58/2,156,421.40
  6. Step 6: Final answer
    x = 3,118,741.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.