Home / 3,239.60-4,864.28-2,588.40

Finding the Fourth Proportional to 3,239.60, 4,864.28 and 2,588.40

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Solution

The fourth proportional to 3,239.60, 4,864.28 and 2,588.40 is: 3,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.60 : 4,864.28 = 2,588.40 : x
  2. Step 2: Convert to fraction form
    3,239.60/4,864.28 = 2,588.40/x
  3. Step 3: Cross multiply
    3,239.60x = 4,864.28 × 2,588.40
  4. Step 4: Simplify right side
    3,239.60x = 12,590,702.35
  5. Step 5: Solve for x
    x = 12,590,702.35/3,239.60
  6. Step 6: Final answer
    x = 3,886.50

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1.5x scale

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.