Home / 9,785.72-14,678.40-2,390.06

Finding the Fourth Proportional to 9,785.72, 14,678.40 and 2,390.06

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Solution

The fourth proportional to 9,785.72, 14,678.40 and 2,390.06 is: 3,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,785.72 : 14,678.40 = 2,390.06 : x
  2. Step 2: Convert to fraction form
    9,785.72/14,678.40 = 2,390.06/x
  3. Step 3: Cross multiply
    9,785.72x = 14,678.40 × 2,390.06
  4. Step 4: Simplify right side
    9,785.72x = 35,082,256.70
  5. Step 5: Solve for x
    x = 35,082,256.70/9,785.72
  6. Step 6: Final answer
    x = 3,585.05

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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.