Home / 2,038.76-2,813.32-1,142.32

Finding the Fourth Proportional to 2,038.76, 2,813.32 and 1,142.32

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Solution

The fourth proportional to 2,038.76, 2,813.32 and 1,142.32 is: 1,576.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.76 : 2,813.32 = 1,142.32 : x
  2. Step 2: Convert to fraction form
    2,038.76/2,813.32 = 1,142.32/x
  3. Step 3: Cross multiply
    2,038.76x = 2,813.32 × 1,142.32
  4. Step 4: Simplify right side
    2,038.76x = 3,213,711.70
  5. Step 5: Solve for x
    x = 3,213,711.70/2,038.76
  6. Step 6: Final answer
    x = 1,576.31

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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.