Home / 4,830.60-6,666.66-2,840.16

Finding the Fourth Proportional to 4,830.60, 6,666.66 and 2,840.16

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Solution

The fourth proportional to 4,830.60, 6,666.66 and 2,840.16 is: 3,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,830.60 : 6,666.66 = 2,840.16 : x
  2. Step 2: Convert to fraction form
    4,830.60/6,666.66 = 2,840.16/x
  3. Step 3: Cross multiply
    4,830.60x = 6,666.66 × 2,840.16
  4. Step 4: Simplify right side
    4,830.60x = 18,934,381.07
  5. Step 5: Solve for x
    x = 18,934,381.07/4,830.60
  6. Step 6: Final answer
    x = 3,919.67

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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.