Home / 2,889.04-3,986.87-1,562.74

Finding the Fourth Proportional to 2,889.04, 3,986.87 and 1,562.74

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Solution

The fourth proportional to 2,889.04, 3,986.87 and 1,562.74 is: 2,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.04 : 3,986.87 = 1,562.74 : x
  2. Step 2: Convert to fraction form
    2,889.04/3,986.87 = 1,562.74/x
  3. Step 3: Cross multiply
    2,889.04x = 3,986.87 × 1,562.74
  4. Step 4: Simplify right side
    2,889.04x = 6,230,444.25
  5. Step 5: Solve for x
    x = 6,230,444.25/2,889.04
  6. Step 6: Final answer
    x = 2,156.58

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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.