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Finding the Fourth Proportional to 2,454.84, 3,389.85 and 1,670.76

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Solution

The fourth proportional to 2,454.84, 3,389.85 and 1,670.76 is: 2,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.84 : 3,389.85 = 1,670.76 : x
  2. Step 2: Convert to fraction form
    2,454.84/3,389.85 = 1,670.76/x
  3. Step 3: Cross multiply
    2,454.84x = 3,389.85 × 1,670.76
  4. Step 4: Simplify right side
    2,454.84x = 5,663,625.79
  5. Step 5: Solve for x
    x = 5,663,625.79/2,454.84
  6. Step 6: Final answer
    x = 2,307.13

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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.