Home / 7,510.20-11,256.30-3,125.40

Finding the Fourth Proportional to 7,510.20, 11,256.30 and 3,125.40

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Solution

The fourth proportional to 7,510.20, 11,256.30 and 3,125.40 is: 4,684.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.20 : 11,256.30 = 3,125.40 : x
  2. Step 2: Convert to fraction form
    7,510.20/11,256.30 = 3,125.40/x
  3. Step 3: Cross multiply
    7,510.20x = 11,256.30 × 3,125.40
  4. Step 4: Simplify right side
    7,510.20x = 35,180,440.02
  5. Step 5: Solve for x
    x = 35,180,440.02/7,510.20
  6. Step 6: Final answer
    x = 4,684.35

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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.