Home / 1,370.04-2,042.07-1,290.17

Finding the Fourth Proportional to 1,370.04, 2,042.07 and 1,290.17

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Solution

The fourth proportional to 1,370.04, 2,042.07 and 1,290.17 is: 1,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.04 : 2,042.07 = 1,290.17 : x
  2. Step 2: Convert to fraction form
    1,370.04/2,042.07 = 1,290.17/x
  3. Step 3: Cross multiply
    1,370.04x = 2,042.07 × 1,290.17
  4. Step 4: Simplify right side
    1,370.04x = 2,634,607.24
  5. Step 5: Solve for x
    x = 2,634,607.24/1,370.04
  6. Step 6: Final answer
    x = 1,923.01

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1.5x scale

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.