Home / 5,320.04-7,980.05-1,424.34

Finding the Fourth Proportional to 5,320.04, 7,980.05 and 1,424.34

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Solution

The fourth proportional to 5,320.04, 7,980.05 and 1,424.34 is: 2,136.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.04 : 7,980.05 = 1,424.34 : x
  2. Step 2: Convert to fraction form
    5,320.04/7,980.05 = 1,424.34/x
  3. Step 3: Cross multiply
    5,320.04x = 7,980.05 × 1,424.34
  4. Step 4: Simplify right side
    5,320.04x = 11,366,304.42
  5. Step 5: Solve for x
    x = 11,366,304.42/5,320.04
  6. Step 6: Final answer
    x = 2,136.51

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Similar ratio
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1.5x scale

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.