Home / 3,547.95-4,896.60-2,131.87

Finding the Fourth Proportional to 3,547.95, 4,896.60 and 2,131.87

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Solution

The fourth proportional to 3,547.95, 4,896.60 and 2,131.87 is: 2,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.95 : 4,896.60 = 2,131.87 : x
  2. Step 2: Convert to fraction form
    3,547.95/4,896.60 = 2,131.87/x
  3. Step 3: Cross multiply
    3,547.95x = 4,896.60 × 2,131.87
  4. Step 4: Simplify right side
    3,547.95x = 10,438,915.58
  5. Step 5: Solve for x
    x = 10,438,915.58/3,547.95
  6. Step 6: Final answer
    x = 2,942.24

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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.