Home / 2,152.16-3,220.08-1,275.13

Finding the Fourth Proportional to 2,152.16, 3,220.08 and 1,275.13

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Solution

The fourth proportional to 2,152.16, 3,220.08 and 1,275.13 is: 1,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.16 : 3,220.08 = 1,275.13 : x
  2. Step 2: Convert to fraction form
    2,152.16/3,220.08 = 1,275.13/x
  3. Step 3: Cross multiply
    2,152.16x = 3,220.08 × 1,275.13
  4. Step 4: Simplify right side
    2,152.16x = 4,106,020.61
  5. Step 5: Solve for x
    x = 4,106,020.61/2,152.16
  6. Step 6: Final answer
    x = 1,907.86

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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.