Home / 1,625.93-2,242.36-1,311.10

Finding the Fourth Proportional to 1,625.93, 2,242.36 and 1,311.10

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Solution

The fourth proportional to 1,625.93, 2,242.36 and 1,311.10 is: 1,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.93 : 2,242.36 = 1,311.10 : x
  2. Step 2: Convert to fraction form
    1,625.93/2,242.36 = 1,311.10/x
  3. Step 3: Cross multiply
    1,625.93x = 2,242.36 × 1,311.10
  4. Step 4: Simplify right side
    1,625.93x = 2,939,949.31
  5. Step 5: Solve for x
    x = 2,939,949.31/1,625.93
  6. Step 6: Final answer
    x = 1,808.17

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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.