Home / 7,811.52-10,779.93-4,275.06

Finding the Fourth Proportional to 7,811.52, 10,779.93 and 4,275.06

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Solution

The fourth proportional to 7,811.52, 10,779.93 and 4,275.06 is: 5,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.52 : 10,779.93 = 4,275.06 : x
  2. Step 2: Convert to fraction form
    7,811.52/10,779.93 = 4,275.06/x
  3. Step 3: Cross multiply
    7,811.52x = 10,779.93 × 4,275.06
  4. Step 4: Simplify right side
    7,811.52x = 46,084,847.55
  5. Step 5: Solve for x
    x = 46,084,847.55/7,811.52
  6. Step 6: Final answer
    x = 5,899.60

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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.