Home / 2,113.24-2,915.02-1,228.92

Finding the Fourth Proportional to 2,113.24, 2,915.02 and 1,228.92

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Solution

The fourth proportional to 2,113.24, 2,915.02 and 1,228.92 is: 1,695.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.24 : 2,915.02 = 1,228.92 : x
  2. Step 2: Convert to fraction form
    2,113.24/2,915.02 = 1,228.92/x
  3. Step 3: Cross multiply
    2,113.24x = 2,915.02 × 1,228.92
  4. Step 4: Simplify right side
    2,113.24x = 3,582,326.38
  5. Step 5: Solve for x
    x = 3,582,326.38/2,113.24
  6. Step 6: Final answer
    x = 1,695.18

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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.