Home / 5,276.16-7,281.05-2,886.08

Finding the Fourth Proportional to 5,276.16, 7,281.05 and 2,886.08

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Solution

The fourth proportional to 5,276.16, 7,281.05 and 2,886.08 is: 3,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.16 : 7,281.05 = 2,886.08 : x
  2. Step 2: Convert to fraction form
    5,276.16/7,281.05 = 2,886.08/x
  3. Step 3: Cross multiply
    5,276.16x = 7,281.05 × 2,886.08
  4. Step 4: Simplify right side
    5,276.16x = 21,013,641.95
  5. Step 5: Solve for x
    x = 21,013,641.95/5,276.16
  6. Step 6: Final answer
    x = 3,982.75

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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.