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Finding the Fourth Proportional to 1,565.19, 2,347.80 and 469.48

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Solution

The fourth proportional to 1,565.19, 2,347.80 and 469.48 is: 704.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.19 : 2,347.80 = 469.48 : x
  2. Step 2: Convert to fraction form
    1,565.19/2,347.80 = 469.48/x
  3. Step 3: Cross multiply
    1,565.19x = 2,347.80 × 469.48
  4. Step 4: Simplify right side
    1,565.19x = 1,102,252.48
  5. Step 5: Solve for x
    x = 1,102,252.48/1,565.19
  6. Step 6: Final answer
    x = 704.23

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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.