Home / 7,021.32-9,688.80-4,036.98

Finding the Fourth Proportional to 7,021.32, 9,688.80 and 4,036.98

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Solution

The fourth proportional to 7,021.32, 9,688.80 and 4,036.98 is: 5,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.32 : 9,688.80 = 4,036.98 : x
  2. Step 2: Convert to fraction form
    7,021.32/9,688.80 = 4,036.98/x
  3. Step 3: Cross multiply
    7,021.32x = 9,688.80 × 4,036.98
  4. Step 4: Simplify right side
    7,021.32x = 39,113,491.82
  5. Step 5: Solve for x
    x = 39,113,491.82/7,021.32
  6. Step 6: Final answer
    x = 5,570.68

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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.