Home / 7,690.24-10,612.32-4,378.24

Finding the Fourth Proportional to 7,690.24, 10,612.32 and 4,378.24

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Solution

The fourth proportional to 7,690.24, 10,612.32 and 4,378.24 is: 6,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.24 : 10,612.32 = 4,378.24 : x
  2. Step 2: Convert to fraction form
    7,690.24/10,612.32 = 4,378.24/x
  3. Step 3: Cross multiply
    7,690.24x = 10,612.32 × 4,378.24
  4. Step 4: Simplify right side
    7,690.24x = 46,463,283.92
  5. Step 5: Solve for x
    x = 46,463,283.92/7,690.24
  6. Step 6: Final answer
    x = 6,041.85

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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.