Home / 1,873.86-2,585.61-1,127.64

Finding the Fourth Proportional to 1,873.86, 2,585.61 and 1,127.64

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Solution

The fourth proportional to 1,873.86, 2,585.61 and 1,127.64 is: 1,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.86 : 2,585.61 = 1,127.64 : x
  2. Step 2: Convert to fraction form
    1,873.86/2,585.61 = 1,127.64/x
  3. Step 3: Cross multiply
    1,873.86x = 2,585.61 × 1,127.64
  4. Step 4: Simplify right side
    1,873.86x = 2,915,637.26
  5. Step 5: Solve for x
    x = 2,915,637.26/1,873.86
  6. Step 6: Final answer
    x = 1,555.95

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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.