Home / 1,772.14-2,445.56-986.17

Finding the Fourth Proportional to 1,772.14, 2,445.56 and 986.17

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Solution

The fourth proportional to 1,772.14, 2,445.56 and 986.17 is: 1,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.14 : 2,445.56 = 986.17 : x
  2. Step 2: Convert to fraction form
    1,772.14/2,445.56 = 986.17/x
  3. Step 3: Cross multiply
    1,772.14x = 2,445.56 × 986.17
  4. Step 4: Simplify right side
    1,772.14x = 2,411,737.91
  5. Step 5: Solve for x
    x = 2,411,737.91/1,772.14
  6. Step 6: Final answer
    x = 1,360.92

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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.