Home / 2,788.16-3,848.24-1,668.67

Finding the Fourth Proportional to 2,788.16, 3,848.24 and 1,668.67

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Solution

The fourth proportional to 2,788.16, 3,848.24 and 1,668.67 is: 2,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.16 : 3,848.24 = 1,668.67 : x
  2. Step 2: Convert to fraction form
    2,788.16/3,848.24 = 1,668.67/x
  3. Step 3: Cross multiply
    2,788.16x = 3,848.24 × 1,668.67
  4. Step 4: Simplify right side
    2,788.16x = 6,421,437.19
  5. Step 5: Solve for x
    x = 6,421,437.19/2,788.16
  6. Step 6: Final answer
    x = 2,303.11

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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.