Home / 5,275.74-7,280.51-2,885.70

Finding the Fourth Proportional to 5,275.74, 7,280.51 and 2,885.70

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Solution

The fourth proportional to 5,275.74, 7,280.51 and 2,885.70 is: 3,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.74 : 7,280.51 = 2,885.70 : x
  2. Step 2: Convert to fraction form
    5,275.74/7,280.51 = 2,885.70/x
  3. Step 3: Cross multiply
    5,275.74x = 7,280.51 × 2,885.70
  4. Step 4: Simplify right side
    5,275.74x = 21,009,367.71
  5. Step 5: Solve for x
    x = 21,009,367.71/5,275.74
  6. Step 6: Final answer
    x = 3,982.26

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Double scale
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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.