Home / 2,486.87-3,430.59-1,542.36

Finding the Fourth Proportional to 2,486.87, 3,430.59 and 1,542.36

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Solution

The fourth proportional to 2,486.87, 3,430.59 and 1,542.36 is: 2,127.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.87 : 3,430.59 = 1,542.36 : x
  2. Step 2: Convert to fraction form
    2,486.87/3,430.59 = 1,542.36/x
  3. Step 3: Cross multiply
    2,486.87x = 3,430.59 × 1,542.36
  4. Step 4: Simplify right side
    2,486.87x = 5,291,204.79
  5. Step 5: Solve for x
    x = 5,291,204.79/2,486.87
  6. Step 6: Final answer
    x = 2,127.66

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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.