Home / 5,289.60-7,290.48-3,518.16

Finding the Fourth Proportional to 5,289.60, 7,290.48 and 3,518.16

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Solution

The fourth proportional to 5,289.60, 7,290.48 and 3,518.16 is: 4,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.60 : 7,290.48 = 3,518.16 : x
  2. Step 2: Convert to fraction form
    5,289.60/7,290.48 = 3,518.16/x
  3. Step 3: Cross multiply
    5,289.60x = 7,290.48 × 3,518.16
  4. Step 4: Simplify right side
    5,289.60x = 25,649,075.12
  5. Step 5: Solve for x
    x = 25,649,075.12/5,289.60
  6. Step 6: Final answer
    x = 4,848.96

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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.