Home / 2,430.12-3,642.06-2,116.48

Finding the Fourth Proportional to 2,430.12, 3,642.06 and 2,116.48

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Solution

The fourth proportional to 2,430.12, 3,642.06 and 2,116.48 is: 3,172.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.12 : 3,642.06 = 2,116.48 : x
  2. Step 2: Convert to fraction form
    2,430.12/3,642.06 = 2,116.48/x
  3. Step 3: Cross multiply
    2,430.12x = 3,642.06 × 2,116.48
  4. Step 4: Simplify right side
    2,430.12x = 7,708,347.15
  5. Step 5: Solve for x
    x = 7,708,347.15/2,430.12
  6. Step 6: Final answer
    x = 3,172.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.