Home / 2,590.48-3,576.84-2,118.88

Finding the Fourth Proportional to 2,590.48, 3,576.84 and 2,118.88

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Solution

The fourth proportional to 2,590.48, 3,576.84 and 2,118.88 is: 2,925.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.48 : 3,576.84 = 2,118.88 : x
  2. Step 2: Convert to fraction form
    2,590.48/3,576.84 = 2,118.88/x
  3. Step 3: Cross multiply
    2,590.48x = 3,576.84 × 2,118.88
  4. Step 4: Simplify right side
    2,590.48x = 7,578,894.74
  5. Step 5: Solve for x
    x = 7,578,894.74/2,590.48
  6. Step 6: Final answer
    x = 2,925.67

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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.