Home / 7,745.18-10,688.40-4,558.60

Finding the Fourth Proportional to 7,745.18, 10,688.40 and 4,558.60

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Solution

The fourth proportional to 7,745.18, 10,688.40 and 4,558.60 is: 6,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.18 : 10,688.40 = 4,558.60 : x
  2. Step 2: Convert to fraction form
    7,745.18/10,688.40 = 4,558.60/x
  3. Step 3: Cross multiply
    7,745.18x = 10,688.40 × 4,558.60
  4. Step 4: Simplify right side
    7,745.18x = 48,724,113.52
  5. Step 5: Solve for x
    x = 48,724,113.52/7,745.18
  6. Step 6: Final answer
    x = 6,290.89

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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.