Home / 1,863.41-2,572.53-1,117.55

Finding the Fourth Proportional to 1,863.41, 2,572.53 and 1,117.55

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Solution

The fourth proportional to 1,863.41, 2,572.53 and 1,117.55 is: 1,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.41 : 2,572.53 = 1,117.55 : x
  2. Step 2: Convert to fraction form
    1,863.41/2,572.53 = 1,117.55/x
  3. Step 3: Cross multiply
    1,863.41x = 2,572.53 × 1,117.55
  4. Step 4: Simplify right side
    1,863.41x = 2,874,928.10
  5. Step 5: Solve for x
    x = 2,874,928.10/1,863.41
  6. Step 6: Final answer
    x = 1,542.84

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Find fourth proportional to 1,864.41, 2,573.92 and 1,118.55
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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.