Home / 4,340.66-6,510.47-1,220.90

Finding the Fourth Proportional to 4,340.66, 6,510.47 and 1,220.90

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Solution

The fourth proportional to 4,340.66, 6,510.47 and 1,220.90 is: 1,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.66 : 6,510.47 = 1,220.90 : x
  2. Step 2: Convert to fraction form
    4,340.66/6,510.47 = 1,220.90/x
  3. Step 3: Cross multiply
    4,340.66x = 6,510.47 × 1,220.90
  4. Step 4: Simplify right side
    4,340.66x = 7,948,594.17
  5. Step 5: Solve for x
    x = 7,948,594.17/4,340.66
  6. Step 6: Final answer
    x = 1,831.20

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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.