Home / 4,585.12-6,877.68-1,988

Finding the Fourth Proportional to 4,585.12, 6,877.68 and 1,988

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Solution

The fourth proportional to 4,585.12, 6,877.68 and 1,988 is: 2,982

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,585.12 : 6,877.68 = 1,988 : x
  2. Step 2: Convert to fraction form
    4,585.12/6,877.68 = 1,988/x
  3. Step 3: Cross multiply
    4,585.12x = 6,877.68 × 1,988
  4. Step 4: Simplify right side
    4,585.12x = 13,672,827.84
  5. Step 5: Solve for x
    x = 13,672,827.84/4,585.12
  6. Step 6: Final answer
    x = 2,982

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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.