Home / 5,117.40-7,674.30-2,345.40

Finding the Fourth Proportional to 5,117.40, 7,674.30 and 2,345.40

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Solution

The fourth proportional to 5,117.40, 7,674.30 and 2,345.40 is: 3,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.40 : 7,674.30 = 2,345.40 : x
  2. Step 2: Convert to fraction form
    5,117.40/7,674.30 = 2,345.40/x
  3. Step 3: Cross multiply
    5,117.40x = 7,674.30 × 2,345.40
  4. Step 4: Simplify right side
    5,117.40x = 17,999,303.22
  5. Step 5: Solve for x
    x = 17,999,303.22/5,117.40
  6. Step 6: Final answer
    x = 3,517.28

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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.