Home / 7,478.28-10,320-4,336.26

Finding the Fourth Proportional to 7,478.28, 10,320 and 4,336.26

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Solution

The fourth proportional to 7,478.28, 10,320 and 4,336.26 is: 5,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.28 : 10,320 = 4,336.26 : x
  2. Step 2: Convert to fraction form
    7,478.28/10,320 = 4,336.26/x
  3. Step 3: Cross multiply
    7,478.28x = 10,320 × 4,336.26
  4. Step 4: Simplify right side
    7,478.28x = 44,750,203.20
  5. Step 5: Solve for x
    x = 44,750,203.20/7,478.28
  6. Step 6: Final answer
    x = 5,984.02

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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.