Home / 1,825.81-2,518.85-1,117.39

Finding the Fourth Proportional to 1,825.81, 2,518.85 and 1,117.39

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Solution

The fourth proportional to 1,825.81, 2,518.85 and 1,117.39 is: 1,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.81 : 2,518.85 = 1,117.39 : x
  2. Step 2: Convert to fraction form
    1,825.81/2,518.85 = 1,117.39/x
  3. Step 3: Cross multiply
    1,825.81x = 2,518.85 × 1,117.39
  4. Step 4: Simplify right side
    1,825.81x = 2,814,519.62
  5. Step 5: Solve for x
    x = 2,814,519.62/1,825.81
  6. Step 6: Final answer
    x = 1,541.52

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Double scale
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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.