Home / 2,113.81-2,916.17-1,415.41

Finding the Fourth Proportional to 2,113.81, 2,916.17 and 1,415.41

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Solution

The fourth proportional to 2,113.81, 2,916.17 and 1,415.41 is: 1,952.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.81 : 2,916.17 = 1,415.41 : x
  2. Step 2: Convert to fraction form
    2,113.81/2,916.17 = 1,415.41/x
  3. Step 3: Cross multiply
    2,113.81x = 2,916.17 × 1,415.41
  4. Step 4: Simplify right side
    2,113.81x = 4,127,569.10
  5. Step 5: Solve for x
    x = 4,127,569.10/2,113.81
  6. Step 6: Final answer
    x = 1,952.67

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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.