Home / 2,989.76-4,485.36-1,042.16

Finding the Fourth Proportional to 2,989.76, 4,485.36 and 1,042.16

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Solution

The fourth proportional to 2,989.76, 4,485.36 and 1,042.16 is: 1,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.76 : 4,485.36 = 1,042.16 : x
  2. Step 2: Convert to fraction form
    2,989.76/4,485.36 = 1,042.16/x
  3. Step 3: Cross multiply
    2,989.76x = 4,485.36 × 1,042.16
  4. Step 4: Simplify right side
    2,989.76x = 4,674,462.78
  5. Step 5: Solve for x
    x = 4,674,462.78/2,989.76
  6. Step 6: Final answer
    x = 1,563.49

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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.