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Finding the Fourth Proportional to 1,051.04, 1,575.45 and 357.41

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Solution

The fourth proportional to 1,051.04, 1,575.45 and 357.41 is: 535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.04 : 1,575.45 = 357.41 : x
  2. Step 2: Convert to fraction form
    1,051.04/1,575.45 = 357.41/x
  3. Step 3: Cross multiply
    1,051.04x = 1,575.45 × 357.41
  4. Step 4: Simplify right side
    1,051.04x = 563,085.52
  5. Step 5: Solve for x
    x = 563,085.52/1,051.04
  6. Step 6: Final answer
    x = 535.74

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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.