Home / 1,419.03-2,136.02-1,294.47

Finding the Fourth Proportional to 1,419.03, 2,136.02 and 1,294.47

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Solution

The fourth proportional to 1,419.03, 2,136.02 and 1,294.47 is: 1,948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419.03 : 2,136.02 = 1,294.47 : x
  2. Step 2: Convert to fraction form
    1,419.03/2,136.02 = 1,294.47/x
  3. Step 3: Cross multiply
    1,419.03x = 2,136.02 × 1,294.47
  4. Step 4: Simplify right side
    1,419.03x = 2,765,007.34
  5. Step 5: Solve for x
    x = 2,765,007.34/1,419.03
  6. Step 6: Final answer
    x = 1,948.52

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.