Home / 5,386.60-7,432.50-3,395.80

Finding the Fourth Proportional to 5,386.60, 7,432.50 and 3,395.80

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Solution

The fourth proportional to 5,386.60, 7,432.50 and 3,395.80 is: 4,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.60 : 7,432.50 = 3,395.80 : x
  2. Step 2: Convert to fraction form
    5,386.60/7,432.50 = 3,395.80/x
  3. Step 3: Cross multiply
    5,386.60x = 7,432.50 × 3,395.80
  4. Step 4: Simplify right side
    5,386.60x = 25,239,283.50
  5. Step 5: Solve for x
    x = 25,239,283.50/5,386.60
  6. Step 6: Final answer
    x = 4,685.57

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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.