Home / 7,021.28-9,688.98-4,368.67

Finding the Fourth Proportional to 7,021.28, 9,688.98 and 4,368.67

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Solution

The fourth proportional to 7,021.28, 9,688.98 and 4,368.67 is: 6,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.28 : 9,688.98 = 4,368.67 : x
  2. Step 2: Convert to fraction form
    7,021.28/9,688.98 = 4,368.67/x
  3. Step 3: Cross multiply
    7,021.28x = 9,688.98 × 4,368.67
  4. Step 4: Simplify right side
    7,021.28x = 42,327,948.42
  5. Step 5: Solve for x
    x = 42,327,948.42/7,021.28
  6. Step 6: Final answer
    x = 6,028.52

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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.