Home / 5,386.68-8,079.71-2,265.05

Finding the Fourth Proportional to 5,386.68, 8,079.71 and 2,265.05

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Solution

The fourth proportional to 5,386.68, 8,079.71 and 2,265.05 is: 3,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.68 : 8,079.71 = 2,265.05 : x
  2. Step 2: Convert to fraction form
    5,386.68/8,079.71 = 2,265.05/x
  3. Step 3: Cross multiply
    5,386.68x = 8,079.71 × 2,265.05
  4. Step 4: Simplify right side
    5,386.68x = 18,300,956.01
  5. Step 5: Solve for x
    x = 18,300,956.01/5,386.68
  6. Step 6: Final answer
    x = 3,397.45

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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.