Home / 1,959.14-2,938.70-498.30

Finding the Fourth Proportional to 1,959.14, 2,938.70 and 498.30

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Solution

The fourth proportional to 1,959.14, 2,938.70 and 498.30 is: 747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.14 : 2,938.70 = 498.30 : x
  2. Step 2: Convert to fraction form
    1,959.14/2,938.70 = 498.30/x
  3. Step 3: Cross multiply
    1,959.14x = 2,938.70 × 498.30
  4. Step 4: Simplify right side
    1,959.14x = 1,464,358.16
  5. Step 5: Solve for x
    x = 1,464,358.16/1,959.14
  6. Step 6: Final answer
    x = 747.45

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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.