Home / 7,877.16-10,870.35-4,292.16

Finding the Fourth Proportional to 7,877.16, 10,870.35 and 4,292.16

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Solution

The fourth proportional to 7,877.16, 10,870.35 and 4,292.16 is: 5,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.16 : 10,870.35 = 4,292.16 : x
  2. Step 2: Convert to fraction form
    7,877.16/10,870.35 = 4,292.16/x
  3. Step 3: Cross multiply
    7,877.16x = 10,870.35 × 4,292.16
  4. Step 4: Simplify right side
    7,877.16x = 46,657,249.49
  5. Step 5: Solve for x
    x = 46,657,249.49/7,877.16
  6. Step 6: Final answer
    x = 5,923.11

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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.