Home / 1,316.19-1,962.29-1,282.53

Finding the Fourth Proportional to 1,316.19, 1,962.29 and 1,282.53

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Solution

The fourth proportional to 1,316.19, 1,962.29 and 1,282.53 is: 1,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.19 : 1,962.29 = 1,282.53 : x
  2. Step 2: Convert to fraction form
    1,316.19/1,962.29 = 1,282.53/x
  3. Step 3: Cross multiply
    1,316.19x = 1,962.29 × 1,282.53
  4. Step 4: Simplify right side
    1,316.19x = 2,516,689.38
  5. Step 5: Solve for x
    x = 2,516,689.38/1,316.19
  6. Step 6: Final answer
    x = 1,912.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.