Home / 1,749.61-2,411.95-1,251.38

Finding the Fourth Proportional to 1,749.61, 2,411.95 and 1,251.38

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Solution

The fourth proportional to 1,749.61, 2,411.95 and 1,251.38 is: 1,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.61 : 2,411.95 = 1,251.38 : x
  2. Step 2: Convert to fraction form
    1,749.61/2,411.95 = 1,251.38/x
  3. Step 3: Cross multiply
    1,749.61x = 2,411.95 × 1,251.38
  4. Step 4: Simplify right side
    1,749.61x = 3,018,271.07
  5. Step 5: Solve for x
    x = 3,018,271.07/1,749.61
  6. Step 6: Final answer
    x = 1,725.11

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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.