Home / 7,779.56-10,735.36-4,421.90

Finding the Fourth Proportional to 7,779.56, 10,735.36 and 4,421.90

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Solution

The fourth proportional to 7,779.56, 10,735.36 and 4,421.90 is: 6,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.56 : 10,735.36 = 4,421.90 : x
  2. Step 2: Convert to fraction form
    7,779.56/10,735.36 = 4,421.90/x
  3. Step 3: Cross multiply
    7,779.56x = 10,735.36 × 4,421.90
  4. Step 4: Simplify right side
    7,779.56x = 47,470,704.17
  5. Step 5: Solve for x
    x = 47,470,704.17/7,779.56
  6. Step 6: Final answer
    x = 6,101.98

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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.