Home / 5,485.41-7,569.81-3,127.50

Finding the Fourth Proportional to 5,485.41, 7,569.81 and 3,127.50

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Solution

The fourth proportional to 5,485.41, 7,569.81 and 3,127.50 is: 4,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.41 : 7,569.81 = 3,127.50 : x
  2. Step 2: Convert to fraction form
    5,485.41/7,569.81 = 3,127.50/x
  3. Step 3: Cross multiply
    5,485.41x = 7,569.81 × 3,127.50
  4. Step 4: Simplify right side
    5,485.41x = 23,674,580.78
  5. Step 5: Solve for x
    x = 23,674,580.78/5,485.41
  6. Step 6: Final answer
    x = 4,315.92

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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.