Home / 2,952.51-4,430.11-1,287.15

Finding the Fourth Proportional to 2,952.51, 4,430.11 and 1,287.15

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Solution

The fourth proportional to 2,952.51, 4,430.11 and 1,287.15 is: 1,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,952.51 : 4,430.11 = 1,287.15 : x
  2. Step 2: Convert to fraction form
    2,952.51/4,430.11 = 1,287.15/x
  3. Step 3: Cross multiply
    2,952.51x = 4,430.11 × 1,287.15
  4. Step 4: Simplify right side
    2,952.51x = 5,702,216.09
  5. Step 5: Solve for x
    x = 5,702,216.09/2,952.51
  6. Step 6: Final answer
    x = 1,931.31

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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.