Home / 2,191.54-3,024.12-1,307.02

Finding the Fourth Proportional to 2,191.54, 3,024.12 and 1,307.02

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Solution

The fourth proportional to 2,191.54, 3,024.12 and 1,307.02 is: 1,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.54 : 3,024.12 = 1,307.02 : x
  2. Step 2: Convert to fraction form
    2,191.54/3,024.12 = 1,307.02/x
  3. Step 3: Cross multiply
    2,191.54x = 3,024.12 × 1,307.02
  4. Step 4: Simplify right side
    2,191.54x = 3,952,585.32
  5. Step 5: Solve for x
    x = 3,952,585.32/2,191.54
  6. Step 6: Final answer
    x = 1,803.57

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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.