Home / 7,040.36-9,710.88-4,386.80

Finding the Fourth Proportional to 7,040.36, 9,710.88 and 4,386.80

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Solution

The fourth proportional to 7,040.36, 9,710.88 and 4,386.80 is: 6,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.36 : 9,710.88 = 4,386.80 : x
  2. Step 2: Convert to fraction form
    7,040.36/9,710.88 = 4,386.80/x
  3. Step 3: Cross multiply
    7,040.36x = 9,710.88 × 4,386.80
  4. Step 4: Simplify right side
    7,040.36x = 42,599,688.38
  5. Step 5: Solve for x
    x = 42,599,688.38/7,040.36
  6. Step 6: Final answer
    x = 6,050.78

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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.