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Finding the Fourth Proportional to 1,567.79, 2,352.75 and 837.89

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Solution

The fourth proportional to 1,567.79, 2,352.75 and 837.89 is: 1,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.79 : 2,352.75 = 837.89 : x
  2. Step 2: Convert to fraction form
    1,567.79/2,352.75 = 837.89/x
  3. Step 3: Cross multiply
    1,567.79x = 2,352.75 × 837.89
  4. Step 4: Simplify right side
    1,567.79x = 1,971,345.70
  5. Step 5: Solve for x
    x = 1,971,345.70/1,567.79
  6. Step 6: Final answer
    x = 1,257.40

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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.