Home / 3,313.47-4,574.43-1,987.50

Finding the Fourth Proportional to 3,313.47, 4,574.43 and 1,987.50

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Solution

The fourth proportional to 3,313.47, 4,574.43 and 1,987.50 is: 2,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.47 : 4,574.43 = 1,987.50 : x
  2. Step 2: Convert to fraction form
    3,313.47/4,574.43 = 1,987.50/x
  3. Step 3: Cross multiply
    3,313.47x = 4,574.43 × 1,987.50
  4. Step 4: Simplify right side
    3,313.47x = 9,091,679.63
  5. Step 5: Solve for x
    x = 9,091,679.63/3,313.47
  6. Step 6: Final answer
    x = 2,743.85

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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.