Home / 1,805.24-2,490.18-1,237.63

Finding the Fourth Proportional to 1,805.24, 2,490.18 and 1,237.63

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Solution

The fourth proportional to 1,805.24, 2,490.18 and 1,237.63 is: 1,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.24 : 2,490.18 = 1,237.63 : x
  2. Step 2: Convert to fraction form
    1,805.24/2,490.18 = 1,237.63/x
  3. Step 3: Cross multiply
    1,805.24x = 2,490.18 × 1,237.63
  4. Step 4: Simplify right side
    1,805.24x = 3,081,921.47
  5. Step 5: Solve for x
    x = 3,081,921.47/1,805.24
  6. Step 6: Final answer
    x = 1,707.21

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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.