Home / 5,345.13-7,378.34-4,784.61

Finding the Fourth Proportional to 5,345.13, 7,378.34 and 4,784.61

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Solution

The fourth proportional to 5,345.13, 7,378.34 and 4,784.61 is: 6,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.13 : 7,378.34 = 4,784.61 : x
  2. Step 2: Convert to fraction form
    5,345.13/7,378.34 = 4,784.61/x
  3. Step 3: Cross multiply
    5,345.13x = 7,378.34 × 4,784.61
  4. Step 4: Simplify right side
    5,345.13x = 35,302,455.42
  5. Step 5: Solve for x
    x = 35,302,455.42/5,345.13
  6. Step 6: Final answer
    x = 6,604.60

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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.