Home / 1,495.16-2,247.60-921.68

Finding the Fourth Proportional to 1,495.16, 2,247.60 and 921.68

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Solution

The fourth proportional to 1,495.16, 2,247.60 and 921.68 is: 1,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495.16 : 2,247.60 = 921.68 : x
  2. Step 2: Convert to fraction form
    1,495.16/2,247.60 = 921.68/x
  3. Step 3: Cross multiply
    1,495.16x = 2,247.60 × 921.68
  4. Step 4: Simplify right side
    1,495.16x = 2,071,567.97
  5. Step 5: Solve for x
    x = 2,071,567.97/1,495.16
  6. Step 6: Final answer
    x = 1,385.52

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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.