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Finding the Fourth Proportional to 2,340.03, 3,509.01 and 915.06

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Solution

The fourth proportional to 2,340.03, 3,509.01 and 915.06 is: 1,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.03 : 3,509.01 = 915.06 : x
  2. Step 2: Convert to fraction form
    2,340.03/3,509.01 = 915.06/x
  3. Step 3: Cross multiply
    2,340.03x = 3,509.01 × 915.06
  4. Step 4: Simplify right side
    2,340.03x = 3,210,954.69
  5. Step 5: Solve for x
    x = 3,210,954.69/2,340.03
  6. Step 6: Final answer
    x = 1,372.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.