Home / 7,021.08-9,681.22-5,740.98

Finding the Fourth Proportional to 7,021.08, 9,681.22 and 5,740.98

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Solution

The fourth proportional to 7,021.08, 9,681.22 and 5,740.98 is: 7,916.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.08 : 9,681.22 = 5,740.98 : x
  2. Step 2: Convert to fraction form
    7,021.08/9,681.22 = 5,740.98/x
  3. Step 3: Cross multiply
    7,021.08x = 9,681.22 × 5,740.98
  4. Step 4: Simplify right side
    7,021.08x = 55,579,690.40
  5. Step 5: Solve for x
    x = 55,579,690.40/7,021.08
  6. Step 6: Final answer
    x = 7,916.12

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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.