Home / 1,521.16-2,281.02-533.80

Finding the Fourth Proportional to 1,521.16, 2,281.02 and 533.80

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Solution

The fourth proportional to 1,521.16, 2,281.02 and 533.80 is: 800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.16 : 2,281.02 = 533.80 : x
  2. Step 2: Convert to fraction form
    1,521.16/2,281.02 = 533.80/x
  3. Step 3: Cross multiply
    1,521.16x = 2,281.02 × 533.80
  4. Step 4: Simplify right side
    1,521.16x = 1,217,608.48
  5. Step 5: Solve for x
    x = 1,217,608.48/1,521.16
  6. Step 6: Final answer
    x = 800.45

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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.