Home / 7,779.05-10,734.67-4,421.40

Finding the Fourth Proportional to 7,779.05, 10,734.67 and 4,421.40

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Solution

The fourth proportional to 7,779.05, 10,734.67 and 4,421.40 is: 6,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.05 : 10,734.67 = 4,421.40 : x
  2. Step 2: Convert to fraction form
    7,779.05/10,734.67 = 4,421.40/x
  3. Step 3: Cross multiply
    7,779.05x = 10,734.67 × 4,421.40
  4. Step 4: Simplify right side
    7,779.05x = 47,462,264.41
  5. Step 5: Solve for x
    x = 47,462,264.41/7,779.05
  6. Step 6: Final answer
    x = 6,101.29

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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.