Home / 4,931.60-7,397.40-2,590.70

Finding the Fourth Proportional to 4,931.60, 7,397.40 and 2,590.70

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Solution

The fourth proportional to 4,931.60, 7,397.40 and 2,590.70 is: 3,886.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.60 : 7,397.40 = 2,590.70 : x
  2. Step 2: Convert to fraction form
    4,931.60/7,397.40 = 2,590.70/x
  3. Step 3: Cross multiply
    4,931.60x = 7,397.40 × 2,590.70
  4. Step 4: Simplify right side
    4,931.60x = 19,164,444.18
  5. Step 5: Solve for x
    x = 19,164,444.18/4,931.60
  6. Step 6: Final answer
    x = 3,886.05

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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.