Home / 7,577.12-10,455.16-4,219.84

Finding the Fourth Proportional to 7,577.12, 10,455.16 and 4,219.84

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Solution

The fourth proportional to 7,577.12, 10,455.16 and 4,219.84 is: 5,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.12 : 10,455.16 = 4,219.84 : x
  2. Step 2: Convert to fraction form
    7,577.12/10,455.16 = 4,219.84/x
  3. Step 3: Cross multiply
    7,577.12x = 10,455.16 × 4,219.84
  4. Step 4: Simplify right side
    7,577.12x = 44,119,102.37
  5. Step 5: Solve for x
    x = 44,119,102.37/7,577.12
  6. Step 6: Final answer
    x = 5,822.67

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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.