Home / 2,153.66-2,972.70-1,862.06

Finding the Fourth Proportional to 2,153.66, 2,972.70 and 1,862.06

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Solution

The fourth proportional to 2,153.66, 2,972.70 and 1,862.06 is: 2,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.66 : 2,972.70 = 1,862.06 : x
  2. Step 2: Convert to fraction form
    2,153.66/2,972.70 = 1,862.06/x
  3. Step 3: Cross multiply
    2,153.66x = 2,972.70 × 1,862.06
  4. Step 4: Simplify right side
    2,153.66x = 5,535,330.90
  5. Step 5: Solve for x
    x = 5,535,330.90/2,153.66
  6. Step 6: Final answer
    x = 2,570.20

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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.