Home / 2,113.40-2,916.18-1,274.02

Finding the Fourth Proportional to 2,113.40, 2,916.18 and 1,274.02

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Solution

The fourth proportional to 2,113.40, 2,916.18 and 1,274.02 is: 1,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.40 : 2,916.18 = 1,274.02 : x
  2. Step 2: Convert to fraction form
    2,113.40/2,916.18 = 1,274.02/x
  3. Step 3: Cross multiply
    2,113.40x = 2,916.18 × 1,274.02
  4. Step 4: Simplify right side
    2,113.40x = 3,715,271.64
  5. Step 5: Solve for x
    x = 3,715,271.64/2,113.40
  6. Step 6: Final answer
    x = 1,757.96

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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.