Home / 1,430.93-1,974.51-801.49

Finding the Fourth Proportional to 1,430.93, 1,974.51 and 801.49

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Solution

The fourth proportional to 1,430.93, 1,974.51 and 801.49 is: 1,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.93 : 1,974.51 = 801.49 : x
  2. Step 2: Convert to fraction form
    1,430.93/1,974.51 = 801.49/x
  3. Step 3: Cross multiply
    1,430.93x = 1,974.51 × 801.49
  4. Step 4: Simplify right side
    1,430.93x = 1,582,550.02
  5. Step 5: Solve for x
    x = 1,582,550.02/1,430.93
  6. Step 6: Final answer
    x = 1,105.96

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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.