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Finding the Fourth Proportional to 2,113.06, 2,916.13 and 1,274.03

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Solution

The fourth proportional to 2,113.06, 2,916.13 and 1,274.03 is: 1,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.06 : 2,916.13 = 1,274.03 : x
  2. Step 2: Convert to fraction form
    2,113.06/2,916.13 = 1,274.03/x
  3. Step 3: Cross multiply
    2,113.06x = 2,916.13 × 1,274.03
  4. Step 4: Simplify right side
    2,113.06x = 3,715,237.10
  5. Step 5: Solve for x
    x = 3,715,237.10/2,113.06
  6. Step 6: Final answer
    x = 1,758.23

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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.