Home / 1,972.93-2,722.60-1,088.72

Finding the Fourth Proportional to 1,972.93, 2,722.60 and 1,088.72

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Solution

The fourth proportional to 1,972.93, 2,722.60 and 1,088.72 is: 1,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.93 : 2,722.60 = 1,088.72 : x
  2. Step 2: Convert to fraction form
    1,972.93/2,722.60 = 1,088.72/x
  3. Step 3: Cross multiply
    1,972.93x = 2,722.60 × 1,088.72
  4. Step 4: Simplify right side
    1,972.93x = 2,964,153.16
  5. Step 5: Solve for x
    x = 2,964,153.16/1,972.93
  6. Step 6: Final answer
    x = 1,502.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.