Home / 2,887.45-4,330.56-1,038.67

Finding the Fourth Proportional to 2,887.45, 4,330.56 and 1,038.67

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Solution

The fourth proportional to 2,887.45, 4,330.56 and 1,038.67 is: 1,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.45 : 4,330.56 = 1,038.67 : x
  2. Step 2: Convert to fraction form
    2,887.45/4,330.56 = 1,038.67/x
  3. Step 3: Cross multiply
    2,887.45x = 4,330.56 × 1,038.67
  4. Step 4: Simplify right side
    2,887.45x = 4,498,022.76
  5. Step 5: Solve for x
    x = 4,498,022.76/2,887.45
  6. Step 6: Final answer
    x = 1,557.78

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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.