Home / 1,459.48-2,190.14-972.88

Finding the Fourth Proportional to 1,459.48, 2,190.14 and 972.88

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Solution

The fourth proportional to 1,459.48, 2,190.14 and 972.88 is: 1,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.48 : 2,190.14 = 972.88 : x
  2. Step 2: Convert to fraction form
    1,459.48/2,190.14 = 972.88/x
  3. Step 3: Cross multiply
    1,459.48x = 2,190.14 × 972.88
  4. Step 4: Simplify right side
    1,459.48x = 2,130,743.40
  5. Step 5: Solve for x
    x = 2,130,743.40/1,459.48
  6. Step 6: Final answer
    x = 1,459.93

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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.