Home / 2,075.16-3,110.64-1,345.20

Finding the Fourth Proportional to 2,075.16, 3,110.64 and 1,345.20

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Solution

The fourth proportional to 2,075.16, 3,110.64 and 1,345.20 is: 2,016.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.16 : 3,110.64 = 1,345.20 : x
  2. Step 2: Convert to fraction form
    2,075.16/3,110.64 = 1,345.20/x
  3. Step 3: Cross multiply
    2,075.16x = 3,110.64 × 1,345.20
  4. Step 4: Simplify right side
    2,075.16x = 4,184,432.93
  5. Step 5: Solve for x
    x = 4,184,432.93/2,075.16
  6. Step 6: Final answer
    x = 2,016.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.