Home / 2,309.48-3,187.16-1,425.76

Finding the Fourth Proportional to 2,309.48, 3,187.16 and 1,425.76

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Solution

The fourth proportional to 2,309.48, 3,187.16 and 1,425.76 is: 1,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.48 : 3,187.16 = 1,425.76 : x
  2. Step 2: Convert to fraction form
    2,309.48/3,187.16 = 1,425.76/x
  3. Step 3: Cross multiply
    2,309.48x = 3,187.16 × 1,425.76
  4. Step 4: Simplify right side
    2,309.48x = 4,544,125.24
  5. Step 5: Solve for x
    x = 4,544,125.24/2,309.48
  6. Step 6: Final answer
    x = 1,967.60

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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.