Home / 1,590.04-2,384.64-1,126.45

Finding the Fourth Proportional to 1,590.04, 2,384.64 and 1,126.45

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Solution

The fourth proportional to 1,590.04, 2,384.64 and 1,126.45 is: 1,689.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590.04 : 2,384.64 = 1,126.45 : x
  2. Step 2: Convert to fraction form
    1,590.04/2,384.64 = 1,126.45/x
  3. Step 3: Cross multiply
    1,590.04x = 2,384.64 × 1,126.45
  4. Step 4: Simplify right side
    1,590.04x = 2,686,183.69
  5. Step 5: Solve for x
    x = 2,686,183.69/1,590.04
  6. Step 6: Final answer
    x = 1,689.38

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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.