Home / 2,113.23-2,916.34-1,403.85

Finding the Fourth Proportional to 2,113.23, 2,916.34 and 1,403.85

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Solution

The fourth proportional to 2,113.23, 2,916.34 and 1,403.85 is: 1,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.23 : 2,916.34 = 1,403.85 : x
  2. Step 2: Convert to fraction form
    2,113.23/2,916.34 = 1,403.85/x
  3. Step 3: Cross multiply
    2,113.23x = 2,916.34 × 1,403.85
  4. Step 4: Simplify right side
    2,113.23x = 4,094,103.91
  5. Step 5: Solve for x
    x = 4,094,103.91/2,113.23
  6. Step 6: Final answer
    x = 1,937.37

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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.