Home / 2,460.29-3,689.53-899.78

Finding the Fourth Proportional to 2,460.29, 3,689.53 and 899.78

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Solution

The fourth proportional to 2,460.29, 3,689.53 and 899.78 is: 1,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,460.29 : 3,689.53 = 899.78 : x
  2. Step 2: Convert to fraction form
    2,460.29/3,689.53 = 899.78/x
  3. Step 3: Cross multiply
    2,460.29x = 3,689.53 × 899.78
  4. Step 4: Simplify right side
    2,460.29x = 3,319,744.61
  5. Step 5: Solve for x
    x = 3,319,744.61/2,460.29
  6. Step 6: Final answer
    x = 1,349.33

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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.