Home / 1,994-2,971.18-1,775.90

Finding the Fourth Proportional to 1,994, 2,971.18 and 1,775.90

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Solution

The fourth proportional to 1,994, 2,971.18 and 1,775.90 is: 2,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994 : 2,971.18 = 1,775.90 : x
  2. Step 2: Convert to fraction form
    1,994/2,971.18 = 1,775.90/x
  3. Step 3: Cross multiply
    1,994x = 2,971.18 × 1,775.90
  4. Step 4: Simplify right side
    1,994x = 5,276,518.56
  5. Step 5: Solve for x
    x = 5,276,518.56/1,994
  6. Step 6: Final answer
    x = 2,646.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.