Home / 1,915.96-2,644.24-1,130.28

Finding the Fourth Proportional to 1,915.96, 2,644.24 and 1,130.28

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Solution

The fourth proportional to 1,915.96, 2,644.24 and 1,130.28 is: 1,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.96 : 2,644.24 = 1,130.28 : x
  2. Step 2: Convert to fraction form
    1,915.96/2,644.24 = 1,130.28/x
  3. Step 3: Cross multiply
    1,915.96x = 2,644.24 × 1,130.28
  4. Step 4: Simplify right side
    1,915.96x = 2,988,731.59
  5. Step 5: Solve for x
    x = 2,988,731.59/1,915.96
  6. Step 6: Final answer
    x = 1,559.91

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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.