Home / 2,420.58-3,336.80-1,756.38

Finding the Fourth Proportional to 2,420.58, 3,336.80 and 1,756.38

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Solution

The fourth proportional to 2,420.58, 3,336.80 and 1,756.38 is: 2,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.58 : 3,336.80 = 1,756.38 : x
  2. Step 2: Convert to fraction form
    2,420.58/3,336.80 = 1,756.38/x
  3. Step 3: Cross multiply
    2,420.58x = 3,336.80 × 1,756.38
  4. Step 4: Simplify right side
    2,420.58x = 5,860,688.78
  5. Step 5: Solve for x
    x = 5,860,688.78/2,420.58
  6. Step 6: Final answer
    x = 2,421.19

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Half scale
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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.