Home / 1,325.19-1,828.98-801.30

Finding the Fourth Proportional to 1,325.19, 1,828.98 and 801.30

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Solution

The fourth proportional to 1,325.19, 1,828.98 and 801.30 is: 1,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.19 : 1,828.98 = 801.30 : x
  2. Step 2: Convert to fraction form
    1,325.19/1,828.98 = 801.30/x
  3. Step 3: Cross multiply
    1,325.19x = 1,828.98 × 801.30
  4. Step 4: Simplify right side
    1,325.19x = 1,465,561.67
  5. Step 5: Solve for x
    x = 1,465,561.67/1,325.19
  6. Step 6: Final answer
    x = 1,105.93

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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.