Home / 7,875.39-11,804.72-2,942.90

Finding the Fourth Proportional to 7,875.39, 11,804.72 and 2,942.90

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Solution

The fourth proportional to 7,875.39, 11,804.72 and 2,942.90 is: 4,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.39 : 11,804.72 = 2,942.90 : x
  2. Step 2: Convert to fraction form
    7,875.39/11,804.72 = 2,942.90/x
  3. Step 3: Cross multiply
    7,875.39x = 11,804.72 × 2,942.90
  4. Step 4: Simplify right side
    7,875.39x = 34,740,036.75
  5. Step 5: Solve for x
    x = 34,740,036.75/7,875.39
  6. Step 6: Final answer
    x = 4,411.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.