Home / 7,868.76-10,858.88-4,283.70

Finding the Fourth Proportional to 7,868.76, 10,858.88 and 4,283.70

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Solution

The fourth proportional to 7,868.76, 10,858.88 and 4,283.70 is: 5,911.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.76 : 10,858.88 = 4,283.70 : x
  2. Step 2: Convert to fraction form
    7,868.76/10,858.88 = 4,283.70/x
  3. Step 3: Cross multiply
    7,868.76x = 10,858.88 × 4,283.70
  4. Step 4: Simplify right side
    7,868.76x = 46,516,184.26
  5. Step 5: Solve for x
    x = 46,516,184.26/7,868.76
  6. Step 6: Final answer
    x = 5,911.50

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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.