Home / 1,560.98-2,153.20-1,001.26

Finding the Fourth Proportional to 1,560.98, 2,153.20 and 1,001.26

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Solution

The fourth proportional to 1,560.98, 2,153.20 and 1,001.26 is: 1,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.98 : 2,153.20 = 1,001.26 : x
  2. Step 2: Convert to fraction form
    1,560.98/2,153.20 = 1,001.26/x
  3. Step 3: Cross multiply
    1,560.98x = 2,153.20 × 1,001.26
  4. Step 4: Simplify right side
    1,560.98x = 2,155,913.03
  5. Step 5: Solve for x
    x = 2,155,913.03/1,560.98
  6. Step 6: Final answer
    x = 1,381.13

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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.