Home / 1,390.04-2,095.51-1,296.08

Finding the Fourth Proportional to 1,390.04, 2,095.51 and 1,296.08

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Solution

The fourth proportional to 1,390.04, 2,095.51 and 1,296.08 is: 1,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390.04 : 2,095.51 = 1,296.08 : x
  2. Step 2: Convert to fraction form
    1,390.04/2,095.51 = 1,296.08/x
  3. Step 3: Cross multiply
    1,390.04x = 2,095.51 × 1,296.08
  4. Step 4: Simplify right side
    1,390.04x = 2,715,948.60
  5. Step 5: Solve for x
    x = 2,715,948.60/1,390.04
  6. Step 6: Final answer
    x = 1,953.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.