Home / 7,189.60-10,784.32-1,852.76

Finding the Fourth Proportional to 7,189.60, 10,784.32 and 1,852.76

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Solution

The fourth proportional to 7,189.60, 10,784.32 and 1,852.76 is: 2,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.60 : 10,784.32 = 1,852.76 : x
  2. Step 2: Convert to fraction form
    7,189.60/10,784.32 = 1,852.76/x
  3. Step 3: Cross multiply
    7,189.60x = 10,784.32 × 1,852.76
  4. Step 4: Simplify right side
    7,189.60x = 19,980,756.72
  5. Step 5: Solve for x
    x = 19,980,756.72/7,189.60
  6. Step 6: Final answer
    x = 2,779.12

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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.