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Finding the Fourth Proportional to 4,575, 6,312.72 and 2,585.40

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Solution

The fourth proportional to 4,575, 6,312.72 and 2,585.40 is: 3,567.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,575 : 6,312.72 = 2,585.40 : x
  2. Step 2: Convert to fraction form
    4,575/6,312.72 = 2,585.40/x
  3. Step 3: Cross multiply
    4,575x = 6,312.72 × 2,585.40
  4. Step 4: Simplify right side
    4,575x = 16,320,906.29
  5. Step 5: Solve for x
    x = 16,320,906.29/4,575
  6. Step 6: Final answer
    x = 3,567.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.