Home / 5,510.40-8,260.80-4,927.20

Finding the Fourth Proportional to 5,510.40, 8,260.80 and 4,927.20

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Solution

The fourth proportional to 5,510.40, 8,260.80 and 4,927.20 is: 7,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.40 : 8,260.80 = 4,927.20 : x
  2. Step 2: Convert to fraction form
    5,510.40/8,260.80 = 4,927.20/x
  3. Step 3: Cross multiply
    5,510.40x = 8,260.80 × 4,927.20
  4. Step 4: Simplify right side
    5,510.40x = 40,702,613.76
  5. Step 5: Solve for x
    x = 40,702,613.76/5,510.40
  6. Step 6: Final answer
    x = 7,386.51

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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.