Home / 4,340.38-6,510.91-1,220.64

Finding the Fourth Proportional to 4,340.38, 6,510.91 and 1,220.64

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Solution

The fourth proportional to 4,340.38, 6,510.91 and 1,220.64 is: 1,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,340.38 : 6,510.91 = 1,220.64 : x
  2. Step 2: Convert to fraction form
    4,340.38/6,510.91 = 1,220.64/x
  3. Step 3: Cross multiply
    4,340.38x = 6,510.91 × 1,220.64
  4. Step 4: Simplify right side
    4,340.38x = 7,947,477.18
  5. Step 5: Solve for x
    x = 7,947,477.18/4,340.38
  6. Step 6: Final answer
    x = 1,831.06

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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.