Home / 2,520.36-3,477.12-1,858.79

Finding the Fourth Proportional to 2,520.36, 3,477.12 and 1,858.79

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Solution

The fourth proportional to 2,520.36, 3,477.12 and 1,858.79 is: 2,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,520.36 : 3,477.12 = 1,858.79 : x
  2. Step 2: Convert to fraction form
    2,520.36/3,477.12 = 1,858.79/x
  3. Step 3: Cross multiply
    2,520.36x = 3,477.12 × 1,858.79
  4. Step 4: Simplify right side
    2,520.36x = 6,463,218.50
  5. Step 5: Solve for x
    x = 6,463,218.50/2,520.36
  6. Step 6: Final answer
    x = 2,564.40

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Half scale
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Double 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.