Home / 2,130.03-2,938.41-1,384.11

Finding the Fourth Proportional to 2,130.03, 2,938.41 and 1,384.11

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Solution

The fourth proportional to 2,130.03, 2,938.41 and 1,384.11 is: 1,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.03 : 2,938.41 = 1,384.11 : x
  2. Step 2: Convert to fraction form
    2,130.03/2,938.41 = 1,384.11/x
  3. Step 3: Cross multiply
    2,130.03x = 2,938.41 × 1,384.11
  4. Step 4: Simplify right side
    2,130.03x = 4,067,082.67
  5. Step 5: Solve for x
    x = 4,067,082.67/2,130.03
  6. Step 6: Final answer
    x = 1,909.40

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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.