Home / 3,113.98-4,298.16-1,854.63

Finding the Fourth Proportional to 3,113.98, 4,298.16 and 1,854.63

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Solution

The fourth proportional to 3,113.98, 4,298.16 and 1,854.63 is: 2,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.98 : 4,298.16 = 1,854.63 : x
  2. Step 2: Convert to fraction form
    3,113.98/4,298.16 = 1,854.63/x
  3. Step 3: Cross multiply
    3,113.98x = 4,298.16 × 1,854.63
  4. Step 4: Simplify right side
    3,113.98x = 7,971,503.44
  5. Step 5: Solve for x
    x = 7,971,503.44/3,113.98
  6. Step 6: Final answer
    x = 2,559.91

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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.