Home / 4,678.08-6,455.73-2,689.01

Finding the Fourth Proportional to 4,678.08, 6,455.73 and 2,689.01

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Solution

The fourth proportional to 4,678.08, 6,455.73 and 2,689.01 is: 3,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.08 : 6,455.73 = 2,689.01 : x
  2. Step 2: Convert to fraction form
    4,678.08/6,455.73 = 2,689.01/x
  3. Step 3: Cross multiply
    4,678.08x = 6,455.73 × 2,689.01
  4. Step 4: Simplify right side
    4,678.08x = 17,359,490.25
  5. Step 5: Solve for x
    x = 17,359,490.25/4,678.08
  6. Step 6: Final answer
    x = 3,710.82

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1.5x scale

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.