Home / 1,810.17-2,497.15-1,138.79

Finding the Fourth Proportional to 1,810.17, 2,497.15 and 1,138.79

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Solution

The fourth proportional to 1,810.17, 2,497.15 and 1,138.79 is: 1,570.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.17 : 2,497.15 = 1,138.79 : x
  2. Step 2: Convert to fraction form
    1,810.17/2,497.15 = 1,138.79/x
  3. Step 3: Cross multiply
    1,810.17x = 2,497.15 × 1,138.79
  4. Step 4: Simplify right side
    1,810.17x = 2,843,730.71
  5. Step 5: Solve for x
    x = 2,843,730.71/1,810.17
  6. Step 6: Final answer
    x = 1,570.97

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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.