Home / 7,779.36-11,669.40-2,585.16

Finding the Fourth Proportional to 7,779.36, 11,669.40 and 2,585.16

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Solution

The fourth proportional to 7,779.36, 11,669.40 and 2,585.16 is: 3,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.36 : 11,669.40 = 2,585.16 : x
  2. Step 2: Convert to fraction form
    7,779.36/11,669.40 = 2,585.16/x
  3. Step 3: Cross multiply
    7,779.36x = 11,669.40 × 2,585.16
  4. Step 4: Simplify right side
    7,779.36x = 30,167,266.10
  5. Step 5: Solve for x
    x = 30,167,266.10/7,779.36
  6. Step 6: Final answer
    x = 3,877.86

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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.