Home / 5,113.28-7,055.80-3,124.32

Finding the Fourth Proportional to 5,113.28, 7,055.80 and 3,124.32

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Solution

The fourth proportional to 5,113.28, 7,055.80 and 3,124.32 is: 4,311.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.28 : 7,055.80 = 3,124.32 : x
  2. Step 2: Convert to fraction form
    5,113.28/7,055.80 = 3,124.32/x
  3. Step 3: Cross multiply
    5,113.28x = 7,055.80 × 3,124.32
  4. Step 4: Simplify right side
    5,113.28x = 22,044,577.06
  5. Step 5: Solve for x
    x = 22,044,577.06/5,113.28
  6. Step 6: Final answer
    x = 4,311.24

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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.