Home / 2,911.17-4,017.55-1,716.21

Finding the Fourth Proportional to 2,911.17, 4,017.55 and 1,716.21

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Solution

The fourth proportional to 2,911.17, 4,017.55 and 1,716.21 is: 2,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.17 : 4,017.55 = 1,716.21 : x
  2. Step 2: Convert to fraction form
    2,911.17/4,017.55 = 1,716.21/x
  3. Step 3: Cross multiply
    2,911.17x = 4,017.55 × 1,716.21
  4. Step 4: Simplify right side
    2,911.17x = 6,894,959.49
  5. Step 5: Solve for x
    x = 6,894,959.49/2,911.17
  6. Step 6: Final answer
    x = 2,368.45

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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.