Home / 1,915.96-2,644.16-1,130.46

Finding the Fourth Proportional to 1,915.96, 2,644.16 and 1,130.46

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Solution

The fourth proportional to 1,915.96, 2,644.16 and 1,130.46 is: 1,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.96 : 2,644.16 = 1,130.46 : x
  2. Step 2: Convert to fraction form
    1,915.96/2,644.16 = 1,130.46/x
  3. Step 3: Cross multiply
    1,915.96x = 2,644.16 × 1,130.46
  4. Step 4: Simplify right side
    1,915.96x = 2,989,111.46
  5. Step 5: Solve for x
    x = 2,989,111.46/1,915.96
  6. Step 6: Final answer
    x = 1,560.11

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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.