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Finding the Fourth Proportional to 1,045.12, 1,566.65 and 583.12

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Solution

The fourth proportional to 1,045.12, 1,566.65 and 583.12 is: 874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.12 : 1,566.65 = 583.12 : x
  2. Step 2: Convert to fraction form
    1,045.12/1,566.65 = 583.12/x
  3. Step 3: Cross multiply
    1,045.12x = 1,566.65 × 583.12
  4. Step 4: Simplify right side
    1,045.12x = 913,542.49
  5. Step 5: Solve for x
    x = 913,542.49/1,045.12
  6. Step 6: Final answer
    x = 874.11

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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.