Home / 5,674.23-7,830.63-3,156.57

Finding the Fourth Proportional to 5,674.23, 7,830.63 and 3,156.57

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Solution

The fourth proportional to 5,674.23, 7,830.63 and 3,156.57 is: 4,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.23 : 7,830.63 = 3,156.57 : x
  2. Step 2: Convert to fraction form
    5,674.23/7,830.63 = 3,156.57/x
  3. Step 3: Cross multiply
    5,674.23x = 7,830.63 × 3,156.57
  4. Step 4: Simplify right side
    5,674.23x = 24,717,931.74
  5. Step 5: Solve for x
    x = 24,717,931.74/5,674.23
  6. Step 6: Final answer
    x = 4,356.17

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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.