Home / 1,553.90-2,330.84-1,065.47

Finding the Fourth Proportional to 1,553.90, 2,330.84 and 1,065.47

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Solution

The fourth proportional to 1,553.90, 2,330.84 and 1,065.47 is: 1,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.90 : 2,330.84 = 1,065.47 : x
  2. Step 2: Convert to fraction form
    1,553.90/2,330.84 = 1,065.47/x
  3. Step 3: Cross multiply
    1,553.90x = 2,330.84 × 1,065.47
  4. Step 4: Simplify right side
    1,553.90x = 2,483,431.10
  5. Step 5: Solve for x
    x = 2,483,431.10/1,553.90
  6. Step 6: Final answer
    x = 1,598.20

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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.