Finding the Fourth Proportional to 3,160,358.91, 4,364,307.68 and 2,988,211.23
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Solution
The fourth proportional to 3,160,358.91, 4,364,307.68 and 2,988,211.23 is: 4,126,579.79
Step by Step Solution
- Step 1: Write the proportion equation
3,160,358.91 : 4,364,307.68 = 2,988,211.23 : x - Step 2: Convert to fraction form
3,160,358.91/4,364,307.68 = 2,988,211.23/x - Step 3: Cross multiply
3,160,358.91x = 4,364,307.68 × 2,988,211.23 - Step 4: Simplify right side
3,160,358.91x = 13,041,473,205,610.19 - Step 5: Solve for x
x = 13,041,473,205,610.19/3,160,358.91 - Step 6: Final answer
x = 4,126,579.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.