Home / 1,452.16-2,185.60-1,088.80

Finding the Fourth Proportional to 1,452.16, 2,185.60 and 1,088.80

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Solution

The fourth proportional to 1,452.16, 2,185.60 and 1,088.80 is: 1,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.16 : 2,185.60 = 1,088.80 : x
  2. Step 2: Convert to fraction form
    1,452.16/2,185.60 = 1,088.80/x
  3. Step 3: Cross multiply
    1,452.16x = 2,185.60 × 1,088.80
  4. Step 4: Simplify right side
    1,452.16x = 2,379,681.28
  5. Step 5: Solve for x
    x = 2,379,681.28/1,452.16
  6. Step 6: Final answer
    x = 1,638.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.